Hussain, A. and Shah, M. (2020) “Comparison of GPS TEC with IRI models of 2007, 2012, AND 1 2016 over Sukkur, Pakistan”, Natural and Applied Sciences International Journal (NASIJ). Peshawar, Pakistan, 1(1), pp. 1–10. doi: 10.47264/idea.nasij/1.1.1.